package com.wufeng.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;

@Configuration
public class CorsFilterConfig {

    @Bean
    public CorsFilter corsFilter(){
        //1. 添加 CORS配置信息
        CorsConfiguration corsConfiguration = new CorsConfiguration();
        corsConfiguration.addAllowedHeader("*"); //放行哪些原始请求头部信息
        corsConfiguration.addAllowedMethod("*"); //放行哪些请求方式
        corsConfiguration.addAllowedOrigin("*"); //放行哪些原始域
        corsConfiguration.addExposedHeader("*"); //暴露哪些头部信息

        //2. 添加映射路径
        UrlBasedCorsConfigurationSource corsConfigurationSource = new UrlBasedCorsConfigurationSource();
        corsConfigurationSource.registerCorsConfiguration("/**",corsConfiguration);

        //3. 返回新的CorsFilter
        return new CorsFilter(corsConfigurationSource);

    }

}